William henry vance



(No Model.)

W. H. VANGE. PAUGET FILTER.

-Patemted Jan.- 5, v1897.

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' UNITED STATES vPATENT OFFICE.

WILLIAM HENRY VANCE, OF SAN` FRANCISCO, CALIFORNIA, ASSIGNOR OF TWO-THIRDS TO FRANK W. WOLFE AND `EDVIN D. WOLFE, OF SAME PLACE.

FAUCET-FILTER.

SPECIFICATION forming part of Letters Patent No. 574,644, dated January 5, 1897.

Application filed Tune 5, 1895. Serial No. 551,765. (No modelJ To all whom it may concern:

Be it known that LWILLIAM HENRY VANCE, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented a new and useful Faucet-Filter, of which the following is a specification.

My invention relates to filters, and particularly to a device adapted to be applied t-o and used in connection with a water-supply pipe; and the objects in view are to provide a simple, inexpensive, and efficient device in which the filtering material may be replaced when, by reason of accumulations, it has become worthless or inoperative; to provide means for cleaning the filtering material without removing it from the casing; to provide means for protecting the filtering material from the force of the waterdischarged through the faucet and into the casing of the filter, and toprovide means whereby easy access may be had to the interior of the easing.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims. y

In the drawings, Figure l is a vertical central section of a filter constructed in accordance with my invention, the section being taken only through the casing. Fig. 2 is a similar view showing the wrappin g of the filtering-chamber in section and'indicating theV filtering-chamber in elevation. Fig. o is a similar view showing the filtering-chamber in section. Fig. 4 is a detail View of the conical compression-ring. Fig. 5 is a View of a coupling adapted for use in connection with a threaded faucet, the casing being shown in section to illustrate a modified form of lterin g material and manner of applying the same.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

The casing l of the improved filter is provided at its upper end with an exteriorlythreaded tubular stem 2, upon which is threaded the coupling or union 3 for attachment to a pipe, (indicated at 4,) and the lower end of the casing is exteriorly threaded to engage a removable cap 5, provided at its center with an outlet nipple or spout (i, communicating with the interior of the casing, an exteriorly-threaded collar 7 extending above the plane of the body of the cap in alinement with said nipple or spout.

The filtering-cylinder comprises a disk 8, connected by a cylindrically-disposed screen 9 with a ring lO, the ring being interiorly threaded to engage the collar carried by the cap, and said disk and ring are held separated to maintain the screen in a taut condition by means of a spring ll, whichis disposed Within the filtering-chamber and bears at its extremities, respectively, against the inner surfaces of the disk and ring. The disk extends laterally beyond the outer surface of the screen to form a Iiange or lip l2 to protect the filtering fabric, which is wound exteriorly upon the filtering-chamber and which is removable when it fails to perform its function by reason of the accumulation of dirt. This filtering fabric, which is applied to the exterior surface of the filtering-chamber, is arranged with its surface approximately flush with the periphery of the iiange or lip formed by the extension of the disk, whereby said disk, with its flange or lip, forms a shield to protect the ltering material from the force of water introduced at the upper end of the casing. Said disk thus forms a deflector. A compressible packing-Washer 13 is arranged upon the bottom of the cap around the threaded collar for the pressure of the ring at the lower end of the filtering-chamber, whereby a water-tight joint is formed bet-Ween the filtering-chamber and the cap. Y

From the above description it will be seen that the filtering-chamber is carried solely by the removable cap, which is tted upon the lower end of and forms a part of the casing, and therefore that said filtering-chamber, with its wrapping of fabric, may be removed from the casing for the purpose of renewin g the parts. The nipple or spout at the center of the removable cap communicates with the interior of the filtering-chamber, and thus allows the escape of water only after it has passed through the Walls of the fil-teringchamber and the wrapping of ltering material which is arranged exteriorly thereon. The wrapping may be of any suitable porous ICO material, such as flannel, cloth, silk, asbestos, cotton, canvas, or the equivalent thereof, and it may be fastened upon the filteringchamber by any suitable means. In Figs. 1 to 3 the filtering material is formed as a cylinder which may be slipped on the gauze cylinder with facility after the latter has been detached from the collar 7. In Fig. 5 the filtering material is shown as formed in a continuous sheet or strip wound upon the gauze cylinder and secured by pins 14.

The form of coupling which I prefer to employ between the threaded collar at the upper end of the casing and the supply-pipe is shown in Figs. 1 to 3, inclusive, the saure comprising a conical compression-ring 15, split or divided to adapt it for adjustment to suit the size of the supply-pipe and encircling the same, as shown in said figures, and a clamping-sleeve 1G, threaded upon said collar 2 and provided at its upper end with a conical bearing-surface 17 to engage the conical surface of the compression-ring. A compressible washer 1S is intel-posed between the upper edge of the colla-1' 2 and the compression-ring, and one or more metallic washers or bearing-rings 19 may be interposed between the upper edge of the collar 2 and the compressible washer. It will be seen that when the parts as described are connected and the clamping-sleeve is screwed down upon the collar 2 the conical bearing-surface of said sleeve will contract the compressionring upon the exterior surface of the supplypipe and thereby clamp the apparatus upon said pipe, and at the same time the washer will be compressed and thus form a tight joint between the contiguous parts of the coupling.

When the device is to be applied to an ordinary faucet having a threaded extremity, the ordinary form of union, as shown in Fig. 5 at 20, may be employed, said union being threaded upon the collar 2 in a manner similar to that described in connection with the clamping-sleeve.

In order to provide for cleaning the filtering material without removing the cylinder from the casing, I form the nozzle G and the exteriorly-threaded collar 7 integral with cach other and separate from the cap 5 and thread said nozzle in a central opening 21 in the cap, said opening being preferably surrounded by a strengthening web or collar 22, which eX- tends the opening and has the effect of bracing and steadying the nozzle. The threads by which the nozzle is connected to the cap are of a more abrupt pitch than the threads upon the collar 7, whereby, when it is desired to clean the filtering material, the nozzle may be turned upward in the cap, thereby elevating the gauze cylinder and the filtering material sufficiently to expose Vents 23, which are formed in the side of the nozzle, said vents being normally closed and arranged below the plane of the inner surface of the cap 5. Then the cylinder is raised to remove its lower ring from contact with the upper surface of the washer 13 and said vents are exposed above the upper surface of the washer, it is obvious that water admitted from the faucet will carry the dirt accumulated upon the surface of the filtering material through the vents and the nozzle and thus cleanse the filter without detaching the cap 5. In asmuch as the pitch of the threads in the opening 21 is greater than that of the threads on the collar 7, the nozzlc may be turned to draw the lower ring of the filtering-cylinder down firmly upon the surface of the washer 13 without detaching the collar 7 from said ring, and therefore after the surface of the filtering material has been properly cleansed the nozzle may be turned in the opposite direction to that necessary to elevate it and thereby return the cylinderto its normal position, whereby water entering the casing must pass through the filtering material and through the gauze of the cylinder in order to reach the nozzle. The nozzle is preferably provided with a milled rib 24, whereby it may be grasped to elevate and lower the cylinder.

Various changes in the form, proportion, and the minor det-ails of construction may bc resorted to without departing from the spirit or sacricing any of the advantages of this invention.

From the above description it will be seen that the filtering-chamber, comprising the filtering-screen, means for holding this screen extended in a cylindrical form, and the fibrous filtering-cylinder which is removably fitted exteriorly upon the screen,m aybe constructed as an article of manufacture adapted to be applied to a filtering device having a casing of any ordinary construction or may be arranged contiguous to the outlet-opening of a tank or reservoir where the casing is unnecessary; and, furthermore, that the openended fibrous cylinder, which is removably fitted upon the cylindrical screen, maybe constructed as an independent article of manufacture, whereby it may be replaced as it becomes foul without the difficulty of winding a continuous strip of filtering fabric upon said cylindrical screen as in the ordin ary practice. 1t will be seen also that the imperforate disk 12 forms a deflector arranged in front of the inlet-opening of the casing in the path of a current of liquid admitted therethrough and perpendicular to said current of liquid, and that in order to hold said disk with a yielding pressure to prevent injury to the members of the filter when the fluid is turned suddenly thereinto I employ the cushionspring 1 1. This spring thus performs a double function in that it maintains the filteringscreen in an extended form and at the same time forms a cushion or yielding support for the defiector. The screen prevents the excessive extension of the spring and thus limits the upward movement of the disk.

Having described my invention, what I claim is- IOO I'IO

l. A filter having a casing provided with inlet and outlet openings, a yieldingly-mounted deIiecting-disk arranged in front of the inlet-opening in position to receive the impact of fiuid entering the casing, and a iiltering medium arranged in rear of and protected and in communication with the outlet-opening, substantially as specified.

3. A filter having a easing provided with inlet and outlet openings, a tiltering-chamber provided at one end with an imperforate disk arranged in front of the inlet-opening to receive the impact of fluid entering the casing, a filtering-screen attached at one end to said disk to limit the movement of the screen toward the inlet-opening, and a spring arranged at one end in contact with the disk to yieldingly support the same and maintain the sereenin a taut condition7 said spring being adapted to oppose the impact of fluid proj ected against the disk, substantially as specifled.

4. As a new article of manufacture, a tiltering-chamber having a' ring adapted to be attached to a supporting-tube, a disk parallel with .the ring and connected therewith by a filtering-screen, and a spring interposed between and seated at its extremities upon the ring and disk and inclosed by the screen to hold the same extended, the disk being supported solely by the spring, substantially as specified.

5. A filter having a casing provided at one end with an inlet-opening, a nipple or spout arranged at the other end of the easing and mounted for movement parallel with its axis, and a filtering-chamber communicating with and adapted to be moved by said nipple or spout, said nipple or spout being provided with lateral vents Yarranged outside of the filtering-chamber and adapted to be exposed to communicate with the interior of the casing when the nipple or spout is moved inwardly to remove the contiguous end of the filtering-chamber from contact with the end of the casing, substantially as specified.

G. A iilter having a casing provided at its upper end with an inlet-opening, a nipple or spout threaded in an opening at the opposite end of the casing and provided with lateral vents adapted to be exposed when the nipple or spout is moved axially inward, and a filtering-chamber communicating with and carried by the nipple or spout and adapted to be moved upward in the casing to remove its lower end from contact with the contiguous end of the easing and thereby allow communication between the interior of the casing and the nipple or spout through said vents, substantially as specified.

7 A iilter having a casing provided at its upper end with an inlet-opening and at its lower end with a removable cap, a nipple or spout threaded for vertical movement in an openin g in said removable cap and provided at its upper end with a threaded collar and below said collar with lateral vents, and a filtering-chamber threaded at its lower end upon said collar and normally arranged with its lower end in contact with the contiguous end of the casing, said nipple or spout being capable of axial movement to remove the lower end of the filtering-chamber from contact with the end of the casing and expose the said lateral vents below the lower end of the filtering-chamber, substantially as specified.

S. A filter having a. casing provided at its upper end with an inlet-opening and at its lower end with a removable cap, a nipple or spout threaded for vertical movement in an opening in said removable cap and provided at its upper end with a threaded collar and below said collar with lateral vents, and a filtering-chamber threaded at its lower end upon said collar and normally arranged with its lower end in contact with the contiguous end of the casing, said nipple o'r spout being capable of axial movement to remove the lower end of the filtering-chamber from contact with the end of the casing and expose the said lateral vents below the lower end of the filtering-chamber, the pitch of the threads on the nipple or spout, whereby it is moved axially to elevate and depress the filteringchamber, being greater than the pitch of the threads whereby the ltering-chamber is secured to the collar, substantially as speciied.

In testimony that I claim the foregoing as my own I have heretoafixed my signature in the presence of two witnesses.

VILLIAM HENRY VANCE.

Witnesses z J. P. HARRINGTON, A. S. GRANT.

IOO 

